The influence of plastic yielding on breakdown pressure in hydraulic fracturing

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Authors: Panos Papanastasiou, Marc J. Thiercelin, John M. Cook, David Durban
Cited by: 9

Abstract

This paper presents a semi-analytical large strain elastoplastic analysis of an internally pressurized wellbore embedded in a Mohr-Coulomb medium. The constitutive equations for a non-associated deformation theory with strain hardening material were fitted on true stress-strain data from triaxial tests on Jurassic shale. The model is used to investigate the effect of plastic yielding on the initiation of a tensile fracture and to interpret the experimental results obtained from hydraulic fracturing tests on hollow cylinders.

Fields of Study & Subjects

Hydraulic Fracturing and Reservoir Analysis Oil and Gas Production Techniques Geotechnical and Geomechanical Engineering

Publication details

Journal / source
Rock Mechanics
Publisher
CRC Press
Pages
281–286
Publication date
18 February 2026
Language
EN
Document type
Book chapter